And here's one way you can tell if you're with a good friend. Say you find a quiet place off the beaten path. You sit side by side and enter the kind of state where you start drawing things in the sand and arranging sticks and stones to make things. You don't agree to do it. You don't have to talk. You just do it and get some kind of peaceful satisfaction from doing it. Deb made this one:
Here's what the boys did: